Package 'pnglitchr'

Create a glitched PNG image

Description

Creates glitched PNG image data.

Usage

count_scanlines(x)

glitch_replace(x, times, seed = sample.int(1e+09, 1))

glitch_remove(x, from, lines)

glitch_transpose(x, src, dst, lines)

glitch_apply(
  x,
  from,
  lines,
  filter_type = c("none", "sub", "up", "average", "paeth")
)

Arguments

x	A character string specifying the path to a PNG file or a raw vector containing PNG image data.
times	An integer specifying the number of times to copy.
seed	An integer specifying the seed for the random number generator.
from, src, dst	Scan line index.
lines	Number of scan lines to be updated.
filter_type	Filter type. One of "none", "sub", "up", "average", "paeth".

Details

The following functions are available:

• count_scanlines(): Returns the total number of scan lines in the PNG image.

• glitch_replace(): Replaces the scan lines randomly.

• glitch_remove(): Removes filter from the scan lines.

• glitch_transpose(): Transposes some scan lines from src to dst.

• glitch_apply(): Applies a specified filter to the scan lines.

Value

A raw vector containing glitched PNG image data.

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